/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef LO_CLANG_SHARED_PLUGINS #include #include #include "check.hxx" #include "plugin.hxx" #include "config_clang.h" // Check for uses of std::optional being assigned to bool, which generally does not do // what you would expect. namespace { class OptionalBool final : public loplugin::FilteringPlugin { public: explicit OptionalBool(loplugin::InstantiationData const& data) : FilteringPlugin(data) { } bool preRun() override { if (!compiler.getLangOpts().CPlusPlus) return false; return true; } void run() override { if (preRun()) TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); } bool VisitIfStmt(const IfStmt* ifStmt) { if (ignoreLocation(ifStmt)) return true; m_ignoreIfCondition = ifStmt->getCond()->IgnoreImplicit(); return true; } bool VisitCXXMemberCallExpr(const CXXMemberCallExpr* memberCall) { if (ignoreLocation(memberCall)) return true; if (m_ignoreIfCondition == memberCall) return true; // check if we are calling a 'operator bool' conversion method auto conversionDecl = dyn_cast_or_null(memberCall->getMethodDecl()); if (!conversionDecl || !conversionDecl->getConversionType()->isBooleanType()) return true; auto ctsd = dyn_cast_or_null( memberCall->getObjectType()->getAsRecordDecl()); if (!ctsd || ctsd->getTemplateArgs().size() < 1) return true; if (ctsd->getName() != "optional") return true; if (!ctsd->getTemplateArgs().get(0).getAsType()->isBooleanType()) return true; report(DiagnosticsEngine::Warning, "using conversion call to convert std::optional to bool probably does not do " "what you expect, rather use has_value() or value_or()", memberCall->getBeginLoc()) << memberCall->getSourceRange(); return true; } private: const Expr* m_ignoreIfCondition = nullptr; }; loplugin::Plugin::Registration optionalbool("optionalbool"); } #endif /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ .04'>distro/collabora/co-24.04 LibreOffice 核心代码仓库文档基金会
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